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3VCZίʔυΛίϯτϦϏϡʔτ
ͯ͠Έͨ
/BP.JOBNJ !TPVUI
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ࣗݾհ
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/BP.JOBNJ!TPVUI
!NJOBNJP
4PGUXBSFFOHJOFFS
!8BOUFEMZ
*OD
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3VCZʹίʔυΛ
ίϯτϦϏϡʔτͯ͠Έ͍ͨʂ
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͕ɺॳΊͯͩͱෆ҆ɻɻɻ
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࣮؆୯ͳεςοϓͰ
ίϯτϦϏϡʔτग़དྷΔ
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࣮؆୯ͳεςοϓͰ
ίϯτϦϏϡʔτग़དྷΔ
ෆཁͳϋʔυϧΛͳ͘͢
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w 3VCZίʔυΛίϯτϦϏϡʔτ͢Δํ๏
w ࣮ࡍʹ13ͱUJDLFUΛ࡞ͬͨ
w ·ͱΊ
ࠓ͢༰
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w 3VCZίʔυΛίϯτϦϏϡʔτ͢Δํ๏
w ࣮ࡍʹ13ͱUJDLFUΛ࡞ͬͨ
w ·ͱΊ
ࠓ͢༰
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3VCZίʔυΛίϯτϦϏϡʔτ͢Δํ๏
w 3VCZͷίϛϡχέʔγϣϯνϟωϧଟ
w 3VCZ*TTVF5SBDLJOH4ZTUFN
w .BJMJOH-JTU
w *3$
w (JU)VC
w $POGFSFODF DG3VCZ,BJHJ
w FUDʜ
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3VCZίʔυΛίϯτϦϏϡʔτ͢Δํ๏
w 3VCZͷίϛϡχέʔγϣϯνϟωϧଟ
w 3VCZ*TTVF5SBDLJOH4ZTUFN
w .BJMJOH-JTU
w *3$
w (JU)VC
w $POGFSFODF DG3VCZ,BJHJ
w FUDʜ
ίʔυͷίϯτϦϏϡʔτͳΒ͜ͷͭ
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3VCZ*TTVF5SBDLJOH4ZTUFN
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3VCZ*TTVF5SBDLJOH4ZTUFN
w #VH3FQPSU
#VH'JY
'FBUVSF1SPQPTBMʹར༻
w #VH
'FBUVSF
.JTDͷϥϕϧ
w QBUDIͳͲ༷ʑͳϑΝΠϧΛఴ
w ࣮Λ͏ఏҊQBUDIͰදݱ
w DGIBTIUBCMFͷ෦࣮ͷมߋ'FBUVSF
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3VCZ*TTVF5SBDLJOH4ZTUFN
w ྑ͍
w QBUDI
BTTJHOͳͲ*TTVF5SBDLJOH4ZTUFNʹඞཁͳ
ػೳඋ͑ͯΔ
w ܽ
w SFENJOFʹ׳Εͯͳ͍ͱऔ͖͍͔ͬʁ
w μϯϩʔυ͠ͳ͍ͱQBUDI͕ݟΕͳ͍ͷ໘
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(JU)VC SVCZSVCZ
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(JU)VC SVCZSVCZ
w GPSLͯ͠13Λ࡞
w ଞͷ044ͱಉ͡ײ֮Ͱؾܰʹ$POUSJCVUFʂ
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(JU)VC SVCZSVCZ
ͨͩ͠ɻɻɻ
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(JU)VC SVCZSVCZ
w খ͞ͳमਖ਼ɺ13͚ͩͰ0,
w ͨͩɺٞʹͳΔมߋ3VCZ*TTVF5SBDLJOH
4ZTUFNͰ5JDLFU࡞ͬͯͶͬͯӡ༻
w *TTVF(JUIVCʹଘࡏ͠ͳ͍
w 3VCZ*TTVF5SBDLJOH4ZTUFNͰશʹཧ
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͡Ό͋ɺίʔυΛίϯτϦϏϡʔτ͍ͨ࣌͠
ͲͷΓํ͕ྑ͍ͷ͔ʁ
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ݸਓతʹɺ(JU)VCͰ13Λ࡞ͬͯɺಉ͡༰Ͱ
3VCZ*TTVF5SBDLJOH4ZTUFNͰ5JDLFU࡞͕Φεεϝʂ
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ଞͷ044ͷίϯτϦϏϡʔτͱಉ༷ɺ
(JU)VC্Ͱ13Λ࡞͢Δ͚ͩͰ΄΅݁ʂ
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w 3VCZίʔυΛίϯτϦϏϡʔτ͢Δํ๏
w ࣮ࡍʹ13ͱUJDLFUΛ࡞ͬͨ
w ·ͱΊ
ࠓ͢༰
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࣮ࡍʹ13ͱ5JDLFUΛ࡞ͬͨ
w ιʔείʔυϦʔσΟϯά͍ͯͯ͠ɺඇޮͳ
ॲཧΛൃݟ
w 4USJOH*OUFSQPMBUJPOͷॲཧ
w ྑ͍ػձͳͷͰɺ13Λ࡞ͬͯΈͨ
[1] pry(main)> world = :world
=> :world
[2] pry(main)> "hello, #{world}!"
=> "hello, world!"
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13
5JDLFUͷݱঢ়
w ͪΐ͏ͲࠓFODPEJOHͷ#VHʹ͍ͭͯίϝϯτ
ΛΒͬͨXमਖ਼ࡁΈ
w ࠓऔΓࠐΜͰΒ͑ΔͷΛؾʹ͍ͬͯΔ
w ٞϦετʹೖͬͯΔͷݟͨͷͰظɻɻɻ
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13ͷ༰
w 3VCZͷ4USJOH෦Ͱ$TUSJOHΛอ࣋͢Δ༻
ͷ$BSSBZΛ࣋ͭ
w ͕͞Γͳ͘ͳΔͱɺͬͱେ͖ͳྖҬΛ
֬อͯ͠ݹ͍Λίϐʔ 3FTJ[JOH
w ࣄલʹඞཁͳྖҬͷେ͖͞Λܭࢉ͓͍ͯͯ͠ɺ
ෆཁͳ3FTJ[JOHΛආ͚Δ࠷దԽΛͨ͠
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3VCZͷจࣈྻ
H e l l o ,
MFOHUI
DBQBDJUZ
”hello,”
”hello,” + ”world” => ”Hello,world”
lXPSMEzͱ݁߹͢ΔͱจࣈͳͷͰDBQBDJUZͰ
ऩ·Βͳ͍
H e l l o , w o r l d
Λߟ͑Δ
3VCZͷ4USJOHͷϝϞϦϨΠΞτུ֓
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3VCZͷจࣈྻ
H e l l o ,
H e l l o , w o r l d
MFOHUI
DBQBDJUZ
H e l l o ,
MFOHUI
DBQBDJUZ
MFOHUI
DBQBDJUZ
େ͖ͳϝϞϦΛ֬อ͠ɺͦ͜ݹ͍Λίϐʔ
Ճ͞ΕΔlXPSMEzΛॻ͖ࠐΈ
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3VCZͷ4USJOH*OUFSQPMBUJPO
[1] pry(main)> world = :world
=> :world
[2] pry(main)> "hello, #{world}!"
=> "hello, world!"
্هͷίʔυɺ෦ͰҎԼͱՁͳॲཧΛ͞ΕΔ
ʢ࣮ࡍʹ$Ͱॻ͔ΕͯΔʣ
"hello, " + :world.to_s + "!"
AAͷͨͼʹίϐʔ͕Δͱ͘ͳΔ͕ɺ
ͦΕΛආ͚Δͱૣ͘ͳΔʂ
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4USJOH*OUFSQPMBUJPOΛߴԽʂ
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w 3VCZίʔυΛίϯτϦϏϡʔτ͢Δํ๏
w ࣮ࡍʹ13ͱUJDLFUΛ࡞ͬͨ
w ·ͱΊ
ࠓ͢༰
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·ͱΊ
w 3VCZɺଞͷ044ͱಉ༷ʹ13Λ࡞ͬͯؾܰʹ
ίʔυίϯτϦϏϡʔτͰ͖Δʂ
w ͨͩ͠ɺ3VCZ*TTVF5SBDLJOH4ZTUFNʹ5JDLFU
Λ࡞ΔͷΕͣʹ
w ΈΜͳͰ3VCZΛͬͱྑ͍ͷʹ͍ͯ͜͠͏ʂ
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ࢀߟ
w 3VCZ8JLJ
w IUUQTCVHTSVCZMBOHPSHQSPKFDUTSVCZXJLJ
w )PX5P$POUSJCVUF
w IUUQTCVHTSVCZMBOHPSHQSPKFDUTSVCZXJLJ
)PX5P$POUSJCVUF
w %FWFMPQFS)PX5P
w IUUQTCVHTSVCZMBOHPSHQSPKFDUTSVCZXJLJ
%FWFMPQFS)PXUP